/* 侧边栏样式 */
.sidebar {
    height: 100vh;
    background: #4e73df;
    padding: 20px;
    color: white;
    position: fixed;
    width: 250px;
}

.sidebar h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: white;
    padding: 0 10px;
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.8);
    padding: 12px 15px;
    margin-bottom: 5px;
    border-radius: 5px;
    transition: all 0.3s;
}

.sidebar .nav-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

.sidebar .nav-link.active {
    color: white;
    background: rgba(255, 255, 255, 0.2);
    font-weight: 500;
}

/* 主内容区域样式 */
.main-content {
    margin-left: 250px;
    padding: 20px;
    background: #f8f9fc;
    min-height: 100vh;
}

/* 用户信息样式 */
.user-info {
    padding: 10px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}